This application is a continuation of application Ser. No. 07,554,779, filed on Jul. 20, 1990, which issued as U.S. Pat. No. 5,230,092 on Jul. 20, 1993, entitled READ/WRITE DEVICE AND APPARATUS AND METHOD FOR READING FROM AND WRITING INTO THE DEVICE.
BACKGROUND OF THE INVENTIONThis invention relates to a radio receiver, radio transmitter and radio transceiver, and more particularly to a read/write device and apparatus and method for reading information from and writing information into such a device wherein the information includes, but is not limited to, identification codes.
As shown in FIG. 13, a conventional read/write device 205 includes a plurality of read/writeterminals 200.Device 205 also includes anopening 207. The plurality of read/writeterminals 200 are accessible through opening 207 when a battery cover (not shown) is removed. The plurality of read/writeterminals 200 are arranged substantially orthogonally to opening 207.
As shown in FIG. 14, an apparatus for reading into and writing from a read/write device includes a plurality of read/writeterminals 201 in the form of leaf springs. As shown in FIG. 15, in reading from and writing into read/writedevice 205, read/writeterminals 201 are inserted through opening 207 ofdevice 205 so as to slidably engage correspondingindividual terminals 200.Terminals 201 must be pushed through opening 207 so as to travel in a direction substantially orthogonal to the direction in whichterminals 201contact terminals 200.
Shown in FIG. 16 is another conventional read/write device 290 which includes an opening 300 and a programmable read only memory (PROM) 301.Opening 300 is formed in abattery casing 303 and PROM 301 is connected through a socket and anauxiliary substrate 302 to a main substrate (not shown).
Since the plurality ofterminals 200 ofdevice 205 are arranged substantially orthogonal to opening 207, which are accessible upon removal of a battery casing cover, a plurality of guide slits formed in a circuit substrate ofdevice 205 in the vicinity ofterminals 200 are required to permit read/writeterminals 201 or read/writeterminals 401 to be placed next to read/writeterminals 200 for engagement therewith. Additional spacing withindevice 205 is required for these guide slits. To accommodate such spacing, the package density (i.e. the number of elements within a given area) of the circuit substrate ofdevice 205 must be maintained at a relatively low level.
Dust and other foreign substances can enter opening 207 during reading and writing operations, detrimentally affecting the operation ofdevice 205. Sincedevice 205 must include guide slits, the elements withindevice 205 must be spread out. Therefore, the overall package density ofdevice 205 is also lowered. Where the thickness of the housing enclosing a device such as a receiver is limited, insufficient spacing therein to permit access ofterminals 200 byterminals 201 or 401 can result.
Typically, when read/writeterminals 201 are made in the form of leaf springs,terminals 201 are made from materials which are not very rigid (i.e. do not have a high material strength) to accommodate the narrow spacing withindevice 205 and to ensure successful contact withterminals 200. Consequently,terminals 201 must be handled with great care. The speed at whichterminals 201 are inserted intodevice 205 must be reduced (i.e., at a lower efficiency). The durability ofterminals 201 is also relatively low. Conventional read/write devices, such asdevice 205, which use a PROM having a predetermined size or thickness and which are not rewritable require use of a socket to accommodate the PROM making the PROM difficult to handle.
It is therefore desirable to provide a read/write device and apparatus and method for reading from and writing into the device so that the package density of the circuit substrate and overall packaging density of the read/write device is relatively high. The design of the read/write device should prevent dust and other foreign particles from entering the device. The read/write apparatus for reading and writing information such as, but not limited to, identification codes, should not require a high level of care to operate and should have read/write terminals of relatively high durability. The read/write apparatus also should be relatively small in size, light in weight and have a relatively low manufacturing cost.
SUMMARY OF THE INVENTIONGenerally speaking, in accordance with the invention, a device such as a receiver, transmitter or transceiver is enclosed within a housing and includes a circuit substrate having a plurality of terminals. The housing has an opening which lies in a plane which is substantially parallel to the plane formed by the terminals of the circuit substrate. Access to the opening is provided by removing a protective covering from the housing of the device. Since the opening is substantially parallel rather than perpendicular to the circuit substrate terminals, there is no need for guide slits within the device to accommodate the read/write terminals of the apparatus. The package density of the circuit substrate and the overall device can be increased.
The opening within the device serves as an opening for a battery casing. At the bottom of the battery casing are a plurality of apertures corresponding to and directly above the terminals of the circuit substrate. The plurality of apertures are dimensioned to have a smaller diameter and are sufficiently spaced from the terminals of the circuit substrate to prevent dust and other foreign substances, including a user's fingers from coming into contact with the terminals of the circuit substrate. Access to the terminals of the circuit substrate for reading information from or writing information into the device is possible only when the battery is removed from the battery casing.
The information which is read from or written into the device includes an identification code. Generally, the identification code must be included within a signal received by the device to operate the device.
In another aspect of the invention, an apparatus for writing information into and reading information from a device includes a base for receiving and supporting the device. The device is enclosed within a housing having a pair of side walls. The device is easily and simply mounted onto the apparatus by placing the sidewalls of the device against a pair of guide walls of the apparatus. Consequently, a high degree of accuracy in mounting the device onto the apparatus is not required. The apparatus also includes a plurality of read/write terminals which correspond in number to the number of terminals of the circuit substrate. Since the opening within the device lies in a plane which is substantially parallel to the plane formed by the terminals of the circuit substrate, the read/write terminals of the apparatus need not be in the form of leaf springs to ensure contact is made between the read/write terminals of the apparatus and the terminals of the circuit substrate of the device. The read/write terminals of the apparatus can have a high material strength and therefore are far more durable than comparable read/write terminals of a conventional apparatus.
The apparatus also includes a rotatable arm, the read/write terminals of the apparatus being connected to one end of the arm. Consequently, the read/write terminals of the apparatus can be moved towards and away from the base.
In reading information from and writing information into a device, the arm is first moved away from the base of the apparatus. The device is then positioned on a table of the apparatus by placing the side walls of the apparatus against the guide walls of the apparatus. The guide walls are substantially orthogonal to each other and can be integrally formed on the table. The arm of the apparatus is then moved toward the table whereby the read/write terminals of the apparatus pass through the opening of the battery casing and the apertures at the bottom of the battery casing so as to engage the terminals of the circuit substrate of the device.
Accordingly, it is an object of the invention to provide an improved read/write device which has a circuit substrate with a relatively high density of elements resulting in a reduction in the overall size of the device.
It is another object of the invention to provide an improved apparatus for reading from and writing into a read/write device which does not require a high level of care, can be operated at a relatively high speed and includes read/writes terminals of high durability.
It is a further object of the invention to provide a read/write apparatus for reading into and writing from a read/write device which is relatively small in size, relatively low in weight and has a relatively low manufacturing cost compared to a conventional read/write apparatus.
Still other objects and advantages of the invention will, in part, be obvious and will, in part, be apparent from the specification.
The invention accordingly comprises several steps in a relation of one or more such steps with respect to each of the others, and the apparatus embodying features of construction, a combination of elements and arrangements of parts which are adapted to effect such steps, all as exemplified in the following detailed disclosure and the scope of the invention will be indicated in the claims.
BRIEF DESCRIPTION OF THE DRAWINGSFor a fuller understanding of the invention, reference is had to the following description taken in connection with the accompanying drawings in which:
FIG. 1 is a plan view of an identification code read/write device in accordance with one embodiment of the invention;
FIG. 2 is a fragmentary sectional view including the battery casing of the device shown in FIG. 1;
FIG. 3 is a plan view of an identification code read/write apparatus in accordance with the invention;
FIG. 4 is a front elevational view of the apparatus shown in FIG. 3;
FIG. 5 is a right side elevational view of the apparatus shown in FIG. 3;
FIG. 6 is a fragmentary sectional view of the rotation bearing protrusion of the apparatus shown in FIG. 4;
FIG. 7 is a fragmentary sectional view of the arm of the apparatus shown in FIG. 3;
FIG. 8 is a fragmentary sectional view of a guide protrusion of the apparatus shown in FIG. 3;
FIG. 9 is a fragmentary plan view of a housing of the apparatus shown in FIG. 3;
FIG. 10 is a fragmentary side elevational view, partially in cross-section, of the apparatus shown in FIG. 3;
FIG. 11 is a fragmentary side elevational view of the arm of the apparatus shown in FIG. 3;
FIG. 12 is a plan view of an identification code read/write device in accordance of another embodiment of the invention;
FIG. 13 is a perspective view of a conventional portable, selectively callable radio receiver;
FIG. 14 is a perspective view of a plurality of read/write terminals included within a conventional read/write apparatus;
FIG. 15 is a fragmentary sectional view of the read/write terminals of FIG. 14 inserted within the read/write device of FIG. 13;
FIG. 16 is another conventional portable, selectively-callable radio receiver; and
FIG. 17 is a perspective view of another embodiment of a read/write apparatus.
DESCRIPTION OF THE PREFERRED EMBODIMENTSShown in FIG. 1 is a read/write device such as, but not limited to, aportable radio receiver 50 with a battery cover, battery rear casing cover and fixing screws for the cover removed.Receiver 50 is of the selectively-callable type, that is, a receiver which selectively receives transmitted information based on a predetermined identification code.Receiver 50 includes a battery casing 1 positioned, as shown in FIG. 1, at the bottom left corner of afront casing cover 2 and an antenna 3 positioned along the right edge offront casing cover 2. Acircuit substrate 10 extends in a plane substantially parallel tofront casing cover 2 and is supported by aguide protrusion 2a and aguide groove 2b.Guide protrusion 2a is formed integrally withfront casing cover 2 and guidegroove 2b is formed in aleft wall 2p offront casing cover 2.
Aspacer 13, which is supported byguide protrusion 2a, maintains a predetermined gap betweencircuit substrate 10 and a rear casing cover (not shown). An additional spacer 1a is integrally formed with battery casing 1.Receiver 50 also includes a battery plus (+) terminal 15 and a battery minus (-)terminal 16.
Battery casing 1 includes a plurality ofslits 1b formed in the back face and adjacent side faces of battery casing 1.Slits 1b are guided in two directions of a plane (i.e., directions ofslits 1b along the back face and adjacent side face) through engagement with aperipheral notch portion 10a of circuit substrate 10 (as also shown in FIG. 2).
Battery casing 1 also includes an integrally formed battery plus (+) terminal guide 1c and a battery minus (-) terminal guide 1d for guiding battery plus (+) terminal 15 and battery minus (-)terminal 16, respectively. Battery casing 1 is effectively supported relative tocircuit substrate 10 through the connection of battery plus (+) terminal guide 1c and battery minus (-) terminal guide 1d to battery plus (+) terminal 15 and battery minus (-)terminal 16. Battery casing 1 is secured tocircuit substrate 10 by rear casing cover fixing screws (not shown), at least one of which engages with spacer 1a.
FIG. 2 is a fragmentary sectional view ofdevice 50 which includes battery casing 1. An additionalflexible circuit substrate 20 is positioned on the exterior surface of battery casing 1. A storage element (i.e. memory device) 21 for storing the receiver identification code is positioned oncircuit 20 betweencircuit substrate 10 andfront casing cover 2. The identification code can be written into thestorage element 21. Preferably, an electrically erasable programmable read only memory (EEPROM) of the 8-terminal dual in-line package (DIP) type is used forstorage element 21. It is to be understood thatstorage element 21 need not be an 8-terminal DIP type and can be mounted tocircuit substrate 20 using any well known technique.
A pair ofprotrusions 1e and 1f, which are formed on the back face of battery casing 1,guide circuit substrate 20 by extending through a pair ofholes 20a and 20b incircuit substrate 20, respectively. Aprotrusion 1g, which is formed at the lower edge of battery casing 1, serves to position a bottom portion of battery casing 1 orcircuit substrate 20. A plurality ofholes 1h such as, but not limited to eight, are formed in the bottom portion of battery casing 1.Holes 1h are arranged in a zigzag fashion to permit packaging of a high density of write terminals. A reduction in the size of bothdevice 50 and, as explained below, an apparatus for reading into or writing fromdevice 50 results.Device 50 also includes abattery 25 seated in battery casing 1, abattery cover 26 coveringbattery cover 25 and arear casing 27.
A plurality ofterminals 20c oncircuit substrate 20 are positioned directly below and correspond to the plurality ofholes 1h so as to permit access tostorage element 21 for reading from and writing into the latter.Terminals 20c are gold plated to provide minimal resistance and a high level of conductivity for information travelling to and fromstorage element 21 throughterminals 20c.
Holes 1h have a relatively small diameter to prevent the fingers of a user when inserting or removingbattery 20 from battery casing 1 from touching one ormore terminals 20c. Accordingly, short circuiting or the like of circuitry includingstorage element 21 is prevented. The read/write operation ofstorage element 21 cannot be performed unlessbattery 25 is removed from battery casing 1. Therefore, during a read/write operation charging ofbattery 25 can be prevented. One ormore soldering portions 28 are positioned betweencircuit substrate 20 andcircuit substrate 10 and define individual islands providing electrical connections therebetween.
Circuit substrate 10 is arranged substantially orthogonal to the back face of battery casing 1.Peripheral notches 10a are spaced slightly apart fromcircuit substrate 20.Holes 1h, which are formed in the bottom portion of battery casing 1, are centrally located between battery plus (+) terminal 15 and battery minus (-)terminal 16 as shown in FIG. 1.
Circuit substrate 20 is bonded and secured in the vicinity ofprotrusion 1g to battery casing 1.Protrusion 1g is provided at the lower edge of battery casing 1.Circuit substrate 20 is also bonded and secured in the vicinity ofholes 1h.
Protrusion 1g extends through a flat recess or chamfer portion 1i. Recess 1i is formed in the lower back face of battery casing 1 and in combination with a correspondingflat relief recess 2c formed infront casing cover 2 prevents having to increase the thickness ofreceiver 50 in order to accommodateprotrusion 1g.
Aflat recess 2d formed infront casing cover 2 serves as a relief forcircuit substrate 20. As illustrated in FIG. 2,substrate 20 can be arranged with all elements on one side of the substrate (i.e., a single sided substrate) which reduces the manufacturing cost ofdevice 50.
FIG. 17 discloses a read/write apparatus 390 for reading into and writing from a conventional read/write device.Apparatus 390 includes a slide guide 400 which rises in a substantially vertical direction from aface 408 of abase 406.Apparatus 390 also includes astage 402 having read/write terminals 401.Stage 402 is operable for moving up and down vertically with respect to aface 407 of a table 410 by controlling the position of ahandle 409 coupled to acam assembly 411.
Read/write apparatuses, such asapparatus 390, for reading from and writing intodevice 205 require thatstage 402, which includes read/write terminals 401, be mounted onapparatus 390 to permit vertical movement with respect totable face 407.Base 406 and slide guides 400 ofapparatus 390 should also be fixed (i.e., rigid) relative to stage 402. However, because of such operating requirements,apparatus 390 is relatively large in size, relatively heavy in weight, includes parts which are difficult to machine and otherwise manufacture and has a relatively high cost. Accordingly, an improved apparatus as shown in FIGS. 3-11 is disclosed.
As shown in FIG. 3, anapparatus 30 for reading from and writing intoreceiver 50 includes abase 31, anarm 32 and apallet 33 serving as a table.Pallet 33 includes a pair ofwalls 33a and 33b extending upwardly frompallet 33 in directions which are substantially orthogonal to each other.Walls 33a and 33b serve to guide a pair ofsides 2f and 2e of front casing cover (i.e., outer casing) 2. More particularly,walls 33a and 33b serve to guide and properly positiondevice 50 when placed onpallet 33 ofapparatus 30.
As shown in FIGS. 3 and 4 a pair oftensile coil springs 34a and 34b serve to bias a plurality of read/write terminals 35 extending downwardly from adistal end 32p ofarm 32 toward atable base 33c ofpallet 33.Base 31 includes a rotation bearingprotrusion portion 31a integrally formed onbase 31. Arotation limiting portion 33d limits the rotation ofarm 32 towardpallet 33 by serving as a stop forarm 32. Witharm 32 resting againstrotation limiting portion 33d,terminals 35 are in position for reading information from or writing information intodevice 50.
As shown in FIG. 5, which illustrates the right side elevational view ofapparatus 30 shown in of FIG. 3, aholder 36 securesterminals 35 toarm 32. A pair ofscrews 37a and 37b, or other suitable fixing elements,secure holder 36 through asubstrate 38 toarm 32. Aflat recess 33e serves as a relief forterminals 35 and is formed intable face 33c ofpallet 33.
Terminals 35 are spring bars which compensate for vertical positional error relative to tablebase 33c whenterminals 35 are inserted through holds 1h ofdevice 50 for making contact withterminals 20c ofsubstrate 20. Preferably, the tips ofterminals 35 are substantially spherical and gold plated to improve their durability and reliability in reading and writing of information.
FIG. 6 illustrates rotation bearingprotrusion portion 31a. Arotary shaft 40 rotatably extends through a pair ofhorizontal holes 31b and 31c of rotation bearingprotrusion portion 31a.Arm 32 also includes a pair ofhorizontal holes 32a and 32b located along the side edges ofarm 32. Rotation bearingprotrusion portion 31a is rotatably supported byrotary shaft 40 and thereby permitsarm 30 to pivot towards and away frompallet 33 aboutrotary shaft 40. A pair of E-shaped retaining rings 41a and 41b seated in a pair of grooves formed at both ends ofrotary shaft 40 preventrotary shaft 40 from slipping out fromholes 31b and 31c.
A pair of retainingmembers 42a and 42b serve to catch and hold the pair ofhook portions 34c and 34d oftensile coil spring 34a and 34b, respectively. A pair of E-shaped retaining rings 43a and 43b prevent retainingmembers 42a and 42b andarm 32 from becoming dislodged fromapparatus 30. A pair of retainingmembers 44a and 44b, shown in FIG. 3, are identical to retainingmembers 42a and 42b. A pair of E-shaped retaining rings (not shown) for preventing retainingmembers 44a and 44b from coming offprotrusions 31d and 31e ofbase 31 are identical to the E-shaped retaining rings 41a, 41b, 43a and 43b shown in FIG. 6. By standardizing the shape of the retaining rings, the number of different types of parts and manufacturing costs ofapparatus 30 can be decreased.
Aflat recess 31f shown in FIG. 6, is formed in an upper portion of rotation bearingprotrusion portion 31a for decreasing the contact area ofrotary shaft 40 with rotation bearingprotrusion portion 31a. By providingflat recess 31f, machining of rotation bearingprotrusion portion 31a is simplified. Furthermore, by providingflat recess 31f in rotation bearingprotrusion portion 31a, variations in the turning force required to rotatearm 32 are reduced.
Referring now to FIG. 7,distal end 32p ofarm 32 includes aguide portion 32c formed integrally witharm 32 and is similar in function to a battery receiving portion of battery casing 1 shown in FIG. 1. Sincereceiver 50 is basically positioned and guided byguide portion 32c,receiver 50 can be readily mounted onpallet 33. Undesirable interference betweenterminal 35 andreceiver 50 is thereby minimized. Asocket 46 is soldered tosubstrate 38. Ahousing 47 is detachably secured tosocket 46. Acable 48 is detachably secured by abushing 49 to aslit portion 32d ofarm 32. A sealingmember 50 preventscable 48 from coming offbushing 49. Preferably, bushing 49 is made from a non-migratable elastic material to preventcable 48 andarm 32 from discoloring and deteriorating. A hexagonal sockethead cap screw 51 extends throughpallet 33 and is secured by ahexagonal nut 52 for connectingpallet 33 tobase 31.Screw 51 is spaced slightly away frompallet 33 andbase 31. A notchedportion 32e ofarm 32 receives and holdsbushing 49.Notch portion 32e has a shape substantially identical to the outer shape ofbushing 49 as shown in FIG. 3.
As shown in FIG. 8, aguide protrusion portion 31g (also shown in FIG. 3) is guided by aguide protrusion 33f ofpallet 33.Guide protrusion 33f is formed integrally withpallet 33. A slight gap betweenguide protrusion 33f and guideprotrusion portion 31g exits to permit positional adjustment betweenterminal 35 andreceiver 50. The combination ofguide protrusion 31g and guideprotrusion 31f is provided at the upper and lower right hand corners ofpallet 33 as shown in FIG. 3. Accordingly,pallet 33 can be easily and readily placed onbase 31.
FIG. 9 illustratesdistal end portion 32p ofarm 32 in whichhousing 47 is inserted insideslit portion 32d andnotch portion 32e. Oncehousing 47 has been pushed beyondslit portion 32d andnotch portion 32e, bushing 49 is inserted innotch portion 32e and secured insplit portion 32d. Since bushing 49 and slitportion 32d are dimensioned so that bushing 49 frictionally engages splitportion 32d, bushing 49 is securedly held bysplit portion 32d and does not move about during operation ofapparatus 30.
As shown in FIG. 10, by depressing arear end 32w ofarm 32, illustrated as a dot-dash line 32',distal end 32p is rotated away frompallet 33 in a direction denoted by an arrow A. In rotatingarm 32, anotch 32f contacts aprotrusion 31d ofbase 31.Notch 32f is formed on the lower side ofrear end 32w.Protrusion 31d is integrally formed onbase 31 and serves as a stop to limit the rotational position ofarm 32 asrear end 32w is depressed. Whennotch 32f is in contact withprotrusion 31d,distal end 32p ofarm 32 is at its maximum distance frompallet 33.
As shown in FIG. 11, whenarm 32 is permitted to rotate towardbase 31 withpallet 33 removed fromapparatus 30,terminal 35 extends into aflat recess 31h.Flat recess 31h serves as a relief forterminal 35. Typically,flat recess 31h is a simple opening extending throughbase 31. Excessive rotation ofarm 32 is prevented byguide portion 32c ofarm 32 coming into contact with the edge offlat recess 31h, which is formed in the upper face ofbase 31. Consequently, no pressure is exerted onterminal 35 whenpallet 33 is removed.
FIG. 12 illustrates a receiver 60 in accordance with an alternative embodiment of the invention and is substantially similar todevice 50 except as noted below. Terminal 60 includes a plurality ofterminals 100 provided on acircuit substrate 101.Terminals 100 are positioned at the side of battery casing 1. A terminal protective cover (not shown) is integrally formed with the battery cover (not shown) and overliesterminals 100 when in position. To prevent short circuiting during replacement of a battery, it is preferable to provide a short circuiting preventive member betweenterminals 100 and battery casing 1. Such a short circuiting preventative member is integrally formed with the battery cover.Terminals 100 can be located at other positions ofcircuit substrate 101 or on a equivalent substrate member. When the terminal protective cover is provided independently of battery casing 1, however, a relatively complicated structure for receiver 60 is required, access toterminals 100 is more difficult andreceiver 50 may be relatively weak in withstanding a charge of static electricity.
The method for reading from and writing intostorage element 21 ofdevice 50 information such as an identificationcode using apparatus 30 is as follows. Initiallyrear end 32w ofarm 32 is depressed towardprotrusion 31d ofbase 31 to separate (i.e., detach)terminals 35 frompallet 33 as shown in FIG. 10.Sides 2e and 2f of front casing cover (i.e., out of casing) 2 ofreceiver 50 are positioned so as to come into contact withwalls 33b and 33a ofpallet 33, respectively.Walls 33a and 33b both guide and properly positionreceiver 50 onpallet 33. Whenrear end 32w is no longer depressed,terminals 35 rotate towards and come into contact withterminals 20c ofsubstrate 20 by extending throughholes 1h. The biasing force required to pressterminals 35 againstterminals 20c is provided bycoil springs 34a and 34b shown in FIG. 3.
As now can be readily appreciated, an identification code read/write device in accordance with the invention permits ready access ofterminals 20c ofsubstrate 20 ofreceiver 50 by insertingterminals 35 ofapparatus 30 through a plurality ofopenings 1h.Terminals 35 are inserted substantially in a direction orthogonal toopenings 1h with the terminal protective cover ofreceiver 50 removed. Sinceterminals 20c are arranged onsubstrate 20 so as to lie in a plane which is substantially parallel to a battery case opening 26a (see FIG. 2) with the terminal protective cover (i.e. battery cover 26) removed, holes 1h (which lead to the inner circuitry) can be readily closed to prevent dust and the like from reachingterminals 20c. The need for additional spacing to accommodate guide slits as required by conventional apparatuses is eliminated. Accordingly, the packaging density ofdevice 50 can be increased while providing a device which is relatively small in size and light in weight.
An identification code read/write device in accordance with the invention has a guide portion for guiding the outer casing of the device in at least two directions of a plane with read/write terminal 35 ofapparatus 30 being detachably supported relative toterminals 20c ofsubstrate 20. Access to read/write terminals 20c by read/write terminals 35 can be achieved through a simple, single operation. Read/write terminals 35 are sufficiently strong, do not require a complicated design and have a relatively high durability.Apparatus 30 is a relatively simple structure, light in weight, small in size and has a low manufacturing cost.
In reading from and writing intodevice 50, read/writeterminals 35 are spaced from read/write device 50 whendevice 50 is initially positioned onpallet 33.Device 50 is easily and properly positioned onpallet 33 by havingsides 2e and 2f offront casing cover 2 brought into contact withwalls 33b and 33a for guiding the former. Read/write terminals 35 are then brought into contact with read/write terminals 20c ofsubstrate 20. Operation of read/write apparatus 30 can be easily controlled by an operator.
It will thus be seen that the objects set forth above and those made apparent from the preceding description are efficiently attained and, since certain changes have been made in the above method and construction set forth without departing from the spirit and scope of the invention, it is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in any limiting sense.
It is also to be understood that the following claims are intended to cover all the generic and specific features of the invention therein described and all statements of the scope of the invention, which as a matter of language, might said to fall therebetween.